<template>
    <div>
        <template v-for="item in this.menuList">
            <el-submenu :index="item.id+''" :key="item.id+''" :disabled="item.disabled" v-if="item.children.length > 0">
                <template slot="title">
                    <i :class="item.icon"></i>
                    <span>{{item.menuName}}</span>
                </template>
                <MenuTree :menuList="item.children"></MenuTree>
            </el-submenu>
            <el-menu-item
                    v-else
                    :disabled="item.disabled"
                    :index="item.url+''"
                    :route="item.url+''"
                    :key="item.id"
                    @click="savePath(item.url)"
            >
                <i :class="item.icon"></i>
                <span slot="title">{{item.menuName}}</span>
            </el-menu-item>
        </template>
    </div>
</template>

<script>
    export default {
        name: "MenuTree",
        props: ['menuList'],
        methods: {
            //保存激活路径
            savePath(path) {
                window.sessionStorage.setItem("activePath", path);
                //调用Main.vue的activePath
                this.activePath = path;
            },

        }
    }
</script>

<style scoped>
    /*实现了一个溢出处理*/
    .el-menu--collapse span,
    .el-menu--collapse i.el-submenu__icon-arrow {
        height: 0;
        width: 0;
        overflow: hidden;
        visibility: hidden;
        display: inline-block;
    }

</style>